If a first class customer requests vodka on the rocks, how should the customer be served?

Serving a first-class customer vodka on the rocks involves presenting the drink in a manner that aligns with the level of service expected in a first-class environment. The appropriate way to serve this request is to give them a glass with ice and vodka.

This choice allows the customer to enjoy the drink as intended, chilled and with an ice-cube texture that enhances the experience. It also demonstrates attention to detail and a commitment to providing a high-quality service that is paramount in a first-class setting. Presenting the drink this way offers a sense of sophistication and caters to the customer's desire for a refined experience.

Other options, like providing a bottle of vodka or a shot, do not fulfill the specific request for "on the rocks," which explicitly implies that the drink should be served over ice. Similarly, a can of soda with vodka would not meet the request at all, which might be more fitting for a casual drink rather than the premium expectation of a first-class customer. Thus, serving a glass with ice and vodka not only meets the customer's request but also reflects the service quality that first-class passengers anticipate.